added sql integration instead of json files

app/MindWork AI Studio/Tools/Databases/EmbeddingState/EmbeddingStateClient.cs

@@ -0,0 +1,35 @@
+using AIStudio.Tools.Services;
+
+namespace AIStudio.Tools.Databases.EmbeddingState;
+
+public abstract class EmbeddingStateClient(string name, string path) : DatabaseClient(name, path)
+{
+    public abstract Task<DataSourceEmbeddingManifest> GetManifestAsync(string dataSourceId, CancellationToken token);
+
+    public abstract Task UpsertDataSourceAsync(
+        string dataSourceId,
+        string dataSourceName,
+        string dataSourceType,
+        string embeddingProviderId,
+        string embeddingSignature,
+        int vectorSize,
+        CancellationToken token);
+
+    public abstract Task UpdateVectorSizeAsync(string dataSourceId, int vectorSize, CancellationToken token);
+
+    public abstract Task UpsertFileAsync(string dataSourceId, EmbeddingStateFile file, CancellationToken token);
+
+    public abstract Task DeleteFileAsync(string dataSourceId, string filePath, CancellationToken token);
+
+    public abstract Task DeleteDataSourceAsync(string dataSourceId, CancellationToken token);
+}
+
+public sealed record EmbeddingStateFile(
+    string FilePath,
+    string FileName,
+    string RelativePath,
+    string Fingerprint,
+    long FileSize,
+    DateTime LastWriteUtc,
+    DateTime EmbeddedAtUtc,
+    int ChunkCount);